modulation wave的例句大全

Based on self-phase modulation and group velocity dispersion, we analyzed the wave shape and pulse chirp of the optical pulse in OTDM.

本文依据自相位调制效应和群速度效应对光时分复用系统中光脉冲的波形和啁啾特性进行了分析。

Spatial self-phase-modulation of a continuous wave laser beam was observed in atomic sodium vapor and an analysis about the natures of self-phase modulation in atomic vapor is presented.

观察到Na原子中连续激光的空间自相位调制，分析研究了原子介质中空间自相位调制特点。

Unification of the frequency shift and pulse compression of an ultrashort laser pulse propagating in a background plasma wave is realized by employing the concept of phase modulation of the laser pulse by the plasma wave.

提出等离子体波对光脉冲产生相位调制的观点，把光脉冲在背景等离子体波中传播时的频率移动与脉宽压缩效应统一起来。

Space-charge Wave Physics Relevant to Modulation of Intense Relativistic Electron Beams

强流相对论电子束群聚的空间电荷波理论分析

Because there is no reset for triangle wave, this modulation technology can void the error caused by the reset pulse.

由于三角波相位调制不存在复位问题，因此，可以避免复位脉冲带来的误差。

Introduces the working principle of a non-atmospheric window millimeter wave FMCW short range radar, analyzes the system primary parameters f_0 、 T_M 、Δ F_M and discusses the effect on parameters choice of Doppler result and parasitic amplitude modulation.

介绍了非大气窗口毫米波FMCW（调频连续波）近程雷达的工作原理，对系统的主要参数f0、TM、ΔFM进行了分析，并讨论了多普勒效应和寄生调幅对参数选择的影响。

LFM Fuze launch the same range of frequency modulation continuous wave signal, and use the substract frequency of the emission signal and the return siganl to determine the distance between the shells with the target.

调频无线电引信发射调频等幅连续波信号，其发射信号的频率按调制信号规律变化，利用回波信号与发射信号的频率差确定弹与目标间的距离。

According to mathematical models of generator and PWM ( Pulse Width Modulation)-control-led wave chopper, the PID ( Proportional-Integral-Derivative) control algorithm is selected by the engineering design method for its regulator.

根据同步机的数学模型、脉宽调制控制的斩波器的数学模型，应用工程设计法确定其调节器的控制算法为比例积分微分（PID）调节。

Pulse modulation uses a pulse sequence or a group of digital signal as the carrier wave, and sine wave modulation use high-frequency sin wave.

脉冲调制是用脉冲串或一组数字信号作为载波的调制方式，正弦波调制则是载波为高频正弦信号的调制方式。

Modulation: converting data from digital form to analog wave form.

调制：把数据从数字量形式转换成模拟量波形。

regarding frequency modulated continuous wave signal, the spectral analysis of instantaneous frequency is used to extract modulation parameter.

对于调频连续波信号，对其瞬时频率进行频谱分析来提取调制参数。

the dissertation includes an analysis of the influence of phase modulation parameter, group velocity mismatch and the wave-length of incident wave on the waveforms of frequency doubled pulses; shows the influence of the chirp of fundamental wave on shg conversion.

论文分析了相位调制参量，群速度失配量及入射波波长对倍频脉冲波形的影响；研究了基波啁啾对倍频转换的影响。

a study on transmission characteristic of the modulation infrared pulse wave used in detecting flaw within an insulation

绝缘体内缺陷诊断用调制红外脉冲波的传播特性

study on the am wave with any modulation factor

调幅系数为任意值的调幅波研究

simulation of ultrasonic standing wave in a bubble column and mechanism for its bubble modulation

鼓泡床中超声驻波的模拟及其对气泡的调制机理

study of change dependence of modulation depth of two-wave coupling in photorefractive crystals

光折变晶体双光束耦合调制度变化特性的研究

numerical analysis of high-frequency property of travelling-wave waveguide electro-optic modulation

行波型波导电光调制高频特性的数值分析

a format conversion from a non-return-to-zero ( nrz) signal to return-to-zero ( rz) signal is presented based on four-wave mixing ( fwm) and cross-phase modulation ( xpm) in a silicon optical waveguide.

基于硅光波导的四波混频（FWM）和交叉相位调制（XPM）效应，提出非归零码（NRZ）到归零码（RZ）的光调制格式转换。

Miniature passive hydrogen maser is developed at Shanghai Observatory cavity design and square wave frequency modulation.

介绍了上海天文台被动型小氢钟的设计和研制,给出了初步的测试结果.

Analysis of the modulation effect of the backscattered wave from a helicopter rotor

直升机旋翼对回波的调制效应分析